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Diffstat (limited to 'plugins/infra/org.eclipse.papyrus.infra.constraints/src/org/eclipse/papyrus/infra/constraints/runtime/ConstraintEngineListener.java')
-rw-r--r--plugins/infra/org.eclipse.papyrus.infra.constraints/src/org/eclipse/papyrus/infra/constraints/runtime/ConstraintEngineListener.java30
1 files changed, 30 insertions, 0 deletions
diff --git a/plugins/infra/org.eclipse.papyrus.infra.constraints/src/org/eclipse/papyrus/infra/constraints/runtime/ConstraintEngineListener.java b/plugins/infra/org.eclipse.papyrus.infra.constraints/src/org/eclipse/papyrus/infra/constraints/runtime/ConstraintEngineListener.java
new file mode 100644
index 00000000000..65f0e5d70e8
--- /dev/null
+++ b/plugins/infra/org.eclipse.papyrus.infra.constraints/src/org/eclipse/papyrus/infra/constraints/runtime/ConstraintEngineListener.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2014 CEA and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Christian W. Damus (CEA) - Initial API and implementation
+ *
+ */
+package org.eclipse.papyrus.infra.constraints.runtime;
+
+import java.util.EventListener;
+
+
+/**
+ * Protocol for notifications of changes in the constraint listener that may affect its clients.
+ */
+public interface ConstraintEngineListener extends EventListener {
+
+ /**
+ * Notifies listeners that the engine's constraints have changed, so any remembered calculation results may need to be recomputed.
+ *
+ * @param event
+ * the notification object
+ */
+ void constraintsChanged(ConstraintsChangedEvent event);
+}

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